Patent · US Expired

Method and system for suppressing ASE noise

US7508577B2 · kind B2 · utility

3Cited by

33References

19Claims

0Family size

Assignee

Alcatel-Lucent USA Inc. · US

Inventors

Andreas Benz · Erlangen, DE
Peter J. Winzer · Aberdeen, US
Bernd Teichmann · Eckental, DE

Key dates

Filing date	Mar 29, 2005
Grant date	Mar 24, 2009
Priority date	—
Expiry date	Jul 20, 2025

Classification

Technology area (CPC H)Electricity
CPC primaryH04B10/291
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A bandstop filter method and system for suppressing ASE noise is disclosed. In one embodiment of the bandstop filter system, there is provided a first switch, having an input port for receiving an optical signal, and two output ports; a bandstop filter coupled to a first of the two output ports of the first switch; and a second switch, having two input ports and one output port, wherein a first of the two input ports of the second switch is coupled to the bandstop filter and a second of the two input ports of the second switch is coupled to a second of the two output ports of the first switch.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.